This paper examines a series of anxieties about mixing at the Jewish Lads’ Brigade and Club (JLB & C) in Manchester, UK during the 1950s and 1960s, primarily focused on inter-faith activities, relationships and marriages. This paper explores how a powerful moral geography of gender and religion came to be shaped, regulated and negotiated at this youth work space. The concerns expressed by some adults over teenage encounters in the post-war city were articulated and understood through the notion of ‘atmospheres’, and this paper suggests how this idea and language captured some of the anxieties and emotions surrounding cultures of leisure at this time. This paper contributes an in-depth and sustained focus on the moral geographies of the post-war city in relation to young people, as well as addressing an important gap in scholarship on Jewish youthful religiosities. Furthermore, it pushes at ideas about meaningful encounters through the consideration of the JLB & C as a meeting space and arena for visitors. Overall, the paper examines how the JLB & C acted as both a mirror to the wider social changes of the post-war era, while also being an active contributor in shaping those same processes of social change.